The error status of the function is captured and tested, but this example ignores a feature of send in non-blocking mode (enabled by the MSG_DONTWAIT flag).
函数的错误状态被捕获并测试，但这个例子忽略了send在无阻塞模式(由msg_dontwait标志启用)下的一个特性。
The post failed because the server returned an error status.
由于服务器返回了错误状态，投递失败。
All phases will stop and the request will be aborted if a handler returns an error status.
如果处理程序返回一个错误状态，所有阶段将停止，请求将被中止。
Because the exception has been handled, the event method does not return an HTTP error status code.
因为异常已被处理，所以该事件方法不返回HTTP错误状态代码。
Because the exception has been handled, the event method does not return an HTTP error status code.
因为异常已被处理，所以该事件方法不返回HTTP错误状态代码。
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